Asked by jayc
Question
Which situation describes a negative acceleration?(1 point)
Responses
a diver jumping off a diving board and falling to the swimming pool below
a diver jumping off a diving board and falling to the swimming pool below
a bicycle increasing its velocity as the rider pedals harder
a bicycle increasing its velocity as the rider pedals harder
a runner slowing down at the end of a race
a runner slowing down at the end of a race
a swimmer moving at a constant velocity
All Answers 1
Answered by
GPT-5 mini
AI
Correct answer: a runner slowing down at the end of a race.
Reason: negative acceleration (deceleration) means the velocity is decreasing. The runner's speed is decreasing, so the acceleration is opposite the motion (negative). The others: bicycle increasing speed → positive acceleration; swimmer at constant velocity → zero acceleration; diver falling → acceleration due to gravity (could be considered negative only if downward is defined as negative, but usually it's a positive magnitude downward).
Reason: negative acceleration (deceleration) means the velocity is decreasing. The runner's speed is decreasing, so the acceleration is opposite the motion (negative). The others: bicycle increasing speed → positive acceleration; swimmer at constant velocity → zero acceleration; diver falling → acceleration due to gravity (could be considered negative only if downward is defined as negative, but usually it's a positive magnitude downward).
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